Ten Things You Probably Didn’t Know—And Neither Did We—About …

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McLaren P1  Electric Cars

Ten Things You Probably Didn t Neither Did We—About McLaren s P1

We had the opportunity to participate in a technical hosted by McLaren to discuss all P1. The long-awaited successor to the famed F1 has touted by the Woking-based operation as the s best car on road and track. So we the opportunity to discover what make this $1.15-million just that and compiled 10 of information you probably didn t frankly, neither did we—about the P1.

1. The P1 is the P12

McLaren’s first road the F1. was codenamed “P1.” And that got us What’s P2 through P11? unclear what P2 through P6 as McLaren says they lost to time. (We suspect the crew is keeping the details for now.) P7 was the Mercedes-Benz SLR McLaren. P8 was an Mercedes/McLaren follow-up project to the P9 and P10 were, well, these are other projects McLaren is secret, although we suspect were other joint with Benz. P11 is the 12C and its variants.

So we are up to which is the P1. P13 likely is the 911 fighter expecting, and P14 is on its way, too. not sure what form the P14 take, but we’ve confirmed it be a sedan or an SUV.

Phew.

2. Suspended Animation

In the process it was deemed the suspension of the P1, or as calls it, “the world s car on road and track,” needs to from casual drive to focus at the touch of a button. The roll stiffness is achievable the hydraulic system underpinning the Controlling suspension heave, the control of each axle, to the level required something In the 12C, a Z-bar is fitted to rear-axle heave.

Heave is important in a car like the P1 because at 150 mph it 1323 pounds of downforce. At speed, even the smallest in ride height will affect aerodynamics and potentially the car’s balance. Also, wanted the ability to slam the P1 2.2 closer to the ground. So, what is to do?

File a patent, of course. the hardware is supplied by Tenneco, the actuators (that look a fancy damper) now feature chambers, instead of two in the 12C’s The two extra chambers dictate height and control heave. additional accumulators (two at axle) link the axles As in the 12C, the P1 is fitted with control arms at the front at axles and relatively soft coil springs are at each

In the end, there are no anti-roll no Z-bar, and eight hydraulic (there are four in the 12C).

The P1 s actuators feature four twice as many as are found in the 12C s

3. A 90-Percent New Powerplant


McLaren at 10- and 12-cylinder options for the P1, but in the end, it that modifying the 12C’s V-8 was the choice, both for efficiency, and emissions, that target is 200 about one-third of the Bugatti s. While this 3.8 shares centers and cylinder dimensions the 12C’s, almost everything is different. The aluminum block is up so the electric motor can mount to its and handle the forces associated said motor. The cylinder pistons, fuel delivery, and are all new. McLaren estimates the is 90-percent new.

Maximum boost is up 40 percent to psi. The transmission is closer to the unit, though, but, the V-8, it’s beefed up to more torque. When engine is running its hottest—1796 at the turbo, 1652 at the exhaust port injectors will to pump fuel into the when the driver lifts off the

Unburned gasoline has a cooling on the turbo system, though it hits the catalytic convertors, the ignites and fire belches out the Another interesting note: If the V-8 were in the P1, the airbox would sit outside the P1’s skin.

4. It s On

The 177-hp electric motor is to the drivetrain via a narrow gearbox the 3.8-liter V-8 and dual-clutch gearbox. gearbox has a fixed ratio of and it is how McLaren managed to line up the and power peaks of the V-8 and electric There is also a clutch the motor’s gearbox and the engine, so the P1 and will, drive under power.

In fact, there is no way to the P1 without some torque the electric motor going to the And, with 177 horsepower on the electric motor can power the car at of more than 100 mph all by itself.

5. A Carbon-Fiber Cage

To transform the carbon-fiber tub into the P1’s McLaren utilizes a process it co-curing. It combines resin molding and an autoclave. The lower of the MonoCage is, for all intents and purposes, the as the tub found in the 12C, although about 11 pounds lighter. the roof is laid up on the tub and the top half is in an autoclave.

The end product weighs than 200 pounds. And, we’re on the topic of carbon the front clamshell weighs eight pounds and the rear that stands six feet is about 15 pounds. McLaren the P1 will come in at around pounds, but we suspect the actual weight will be closer to when she’s full of

McLaren P1  Electric Cars

6. Very, Very Cool

of power, 903 ponies to be exact, lots of heat. To manage all heat McLaren employs 13 exchangers. Yes, that is a

McLaren estimates the P1 s V-8 generates 20 more heat than the 12C s, and requires about 40 percent radiators.

7. More on the Way

McLaren a new model in each of the next two It’s unlikely the 2014 will be the 911 fighter. We’re the ’14 model will be a track-oriented 12C

Maybe P1’s 727-hp sans electric motor, power such a car.

8. A Feel

P1 planners and engineers think they could an existing electrically assisted rack to provide ample Instead, and as is the case in the 12C, an system is used. This also moves hydraulic around the suspension system. too, were a feedback

While most hybrids use the motor(s) to slow a car with braking, the P1 harvests the otherwise energy generated by the engine off-throttle events, like in order to preserve brake

The 177-hp electric motor has roles. Aside from torque to the wheels, it starts the charges both the high (535-volt, 4.7-kWh hybrid and via a DC-DC convertor, acts as an by managing the standard 12-volt This setup simplifies the auxiliary layout.

In fact, the engine lacks any auxiliary altogether. Aside the motor, there is an A/C compressor, but it is off the electric motor’s gearbox.

suppliers and partners were for this project. Here are a few: Carbo Tech worked on the MonoCage, Tenneco was with the hydraulic suspensions, supply the springs, Ricardo had a in the engine, Axeon handled the pack, the transmission is a Graziano, come from Sabelt, constructed the body, Akibono the brakes, and the electric motor is all

McLaren P1  Electric Cars
McLaren P1  Electric Cars
McLaren P1  Electric Cars
McLaren P1  Electric Cars
McLaren P1  Electric Cars
McLaren P1  Electric Cars

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